O2 now has Javascript AST support (plus XSS PoC builder)

The latest version of O2 contains support for parsing Javascript (and building its AST), which you can see in action in these two scripts:

• Web - Javascript AST Viewer (in O2's wiki)
• Web - JavaScript Stats Viewer (in O2's wiki) 

Also, for the BlackBox crowd, to showcase O2's automation capabilities, I wrote a XSS PoC Builder which allows the quick development, testing and deployment of XSS PoCs

You can read all about it here: Web - XSS PoC Builder  (in O2's wiki)